NYC-WTC_000229139

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1888 Lab Group #; 7912 Filter Type / FUter Area; MCE 385 mm-’ Lab Sample #: 10 Grid Opening Size: 0,01124

Client Sample #; 12 Area Examined: 0.04496 mm^

GRID BOX; Magnification: 20,000 GRID ID; Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date; 5/30/02

Analysts Performed By; MARK PEYSAKHOV

GO. Structure Structure Type Length iD of Structure N or V EDS No (Nonadb F B c M >=05 p ~ >=5u Chrys An^ibote AmbgW Elements) No Coord <5p

,— g <-<. —

Struct = > O.Sp > 5: i Aspect Ratio Grid acceptance Totals laboratory identification criteria observed least 20 unfolded or oveitapped grid squares <5% F B C M >5p EDS spectrum conforming to laboratory holes or opaque areas denSfication criteria observed Chrysotile AMPHIBOLES Amphibole F = Single Fiber Amosite Crocidolite Ambiguous B = Bundle {<3 Sbers <1 fiber diameter apart C = Cluster i>3 Intersecfonsi Anthophyllite Non-Asbeslos Tremolite M = Matrix Actinolite Non'Identified NSD = No Structures Detected

CITY_21MC1OO_OO29O2267

NYC-WTC_000229139